Practical help for specifying the target difference in sample size calculations for RCTs: the DELTA2 five-stage study, including a workshop
Background: The randomised controlled trial is widely considered to be the gold standard study for comparing the effectiveness of health interventions. Central to its design is a calculation of the number of participants needed (the sample size) for the trial. The sample size is typically calculated...
Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
NIHR Journals Library
2019-10-01
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Series: | Health Technology Assessment |
Subjects: | |
Online Access: | https://doi.org/10.3310/hta23600 |